Extended DNS (EDNSO) and Standard DNS

[Jo]

Guys

In which situation a DNS server will send an Extended DNS (EDNS0)
queries to another DNS server?

I had a problem yesterday where an Alteon switch which is acting like
DNS server for A records, rejected all the DNS queries, if the DNS
query was EDNS0 with additional records.

Thansk

Joe

[Barry Margolin]

In article <ea0fdef4.0403...@posting.google.com>,
syn...@excite.com (Jo) wrote:

> In which situation a DNS server will send an Extended DNS (EDNS0)
> queries to another DNS server?

Recent BIND releases send them by default, unless it has been disabled
in the named.conf file. I don't know what other DNS servers do.

P.S. A better group for this question would have been
comp.protocols.tcp-ip.domains.

--
Barry Margolin, bar...@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***